Watch a Chinese spy bribe a Pentagon turncoat

Since the end of the Cold War -- and maybe even some years before that -- the biggest espionage threat to the United States has come not from Moscow but Beijing. China focuses nearly all its spying on us, and the FBI's counterintelligence response has been one of almost unbridled failure. 60 Minutes has a report on the subject Sunday at 7 p.m., including candid interviews with former Chinese spies and former American spy hunters. There's also some fascinating video from FBI surveillance cameras, including the one posted up above that shows a Chinese agent paying a Defense Department worker $2,000 for a look at classified documents on U.S. arms sales to Taiwan.